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WO1999041760A1 - Electromagnetic current releasing device for electrical circuit breaker - Google Patents

Electromagnetic current releasing device for electrical circuit breaker Download PDF

Info

Publication number
WO1999041760A1
WO1999041760A1 PCT/DE1999/000249 DE9900249W WO9941760A1 WO 1999041760 A1 WO1999041760 A1 WO 1999041760A1 DE 9900249 W DE9900249 W DE 9900249W WO 9941760 A1 WO9941760 A1 WO 9941760A1
Authority
WO
WIPO (PCT)
Prior art keywords
releasing device
electromagnetic current
electrical circuit
circuit breaker
magnetic core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/DE1999/000249
Other languages
German (de)
French (fr)
Inventor
Christian Schreckinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP99914393A priority Critical patent/EP1053556B1/en
Priority to DE59900539T priority patent/DE59900539D1/en
Priority to JP2000531857A priority patent/JP2002503869A/en
Publication of WO1999041760A1 publication Critical patent/WO1999041760A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H2071/249—Electromagnetic mechanisms with part of the magnetic circuit being in the normal current path in the circuit breaker, e.g. yoke, fixed contact and arc-runner are made out of one single conductive element

Definitions

  • the invention relates to an electromagnetic current release for an electrical circuit breaker with a magnet coil, a movable armature and a stationary magnet core, which is held by a current connection terminal of the magnet coil.
  • Generic electromagnetic current releases according to FIG. 2 are used to detect overcurrents, in particular short-circuit currents, in conventional electrical circuit breakers in order to protect single-pole and multi-pole electrical consumers against impermissible operating states.
  • These circuit breakers can be circuit breakers, motor circuit breakers and circuit breakers. Depending on the applicable regulation, you must switch off overcurrents within certain response limits.
  • the current releases are coupled to the contacts of the circuit breakers to be opened in such a way that they open and, if necessary, keep them open in response to an overcurrent or short-circuit current.
  • such current releases 1 are composed of a magnetic coil 2, a coil part 3 with a guide tube 4, a movable armature 5, a stationary magnetic core 6, a spring 7 and a current connecting terminal 8.
  • the coil frame 3 with the guide tube 4 is made of insulating material.
  • the magnetic coil 2 is wound or plugged around the coil frame 3.
  • the armature 5, which is movably mounted in the guide tube 4 moves against the spring force of the spring 7 in response to an overcurrent or short-circuit current. In this way, opening of the contacts located in the current path is achieved via corresponding mechanical coupling elements.
  • a magnetic core 6 is pressed in the guide tube 4 of the coil frame 3 or in the connecting 2 terminal 8, as shown in FIG 2, a magnetic core 6 is pressed.
  • the magnetic core 6 is an additional part, which is preferably mounted inside the guide tube 4, that is to say at least partially in the interior of the magnet coil 2.
  • the invention has for its object to partially minimize an electromagnetic current release of the type mentioned above and thus economically.
  • the object is achieved in that the magnetic core and the power connector are made in one piece.
  • a particularly inexpensive embodiment is provided when the magnetic core and the power connection terminal are manufactured as a one-piece stamped and bent part.
  • the electromagnetic current release 1 is composed of a magnetic coil 2, a coil frame 3 with a guide tube 4 made of insulating material, a movable armature 5, a stationary magnetic core 6, a spring 7 and a current connection terminal 8 as essential elements.
  • the magnet coil 2 is wound around the coil frame or attached to it and is part of the current path of a consumer to be protected.
  • the armature 5 is movably mounted in the guide tube 4 and reacts to a short-circuit current. The movement of the armature 5 causes corresponding mechanical coupling links to open contact points located in the current path. The armature 5 moves against the force of one also in the guide tube 3 4 mounted spring 7.
  • a stationary magnetic core 6 is arranged in the guide tube 4 of the coil frame 3, which is made together with a power terminal 8 for the magnet coil 2 as a one-piece part.
  • This part is advantageously designed as a stamped and bent part.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Electromagnets (AREA)

Abstract

The invention relates to an electromagnetic current releasing device (1), wherein a fixed magnetic core (6) which forms part of the magnetic system is built as a single piece with a terminal (8) used for connecting the magnetic spool (2) of the magnetic system, in the form of a stamped and bent piece. A cost effective current releasing device can thus be obtained.

Description

Beschreibungdescription

Elektromagnetischer Stromauslöser für einen elektrischen SchutzschalterElectromagnetic current release for an electrical circuit breaker

Die Erfindung bezieht sich auf einen elektromagnetischen Stromauslöser für einen elektrischen Schutzschalter mit einer Magnetspule, einem beweglichen Anker und einem ortsfesten Magnetkern, der durch eine Stromanschlußklemme der Magnetspule gehalten ist.The invention relates to an electromagnetic current release for an electrical circuit breaker with a magnet coil, a movable armature and a stationary magnet core, which is held by a current connection terminal of the magnet coil.

Gattungsgemäße elektromagnetische Stromauslöser gemäß FIG 2 werden zur Erkennung von Überströmen, insbesondere von Kurzschlußströmen, bei konventionellen elektrischen Schutzschal- tern angewandt, um ein- und mehrpolige elektrische Verbraucher vor unzulässigen Betriebszuständen zu schützen. Diese Schutzschalter können Leistungsschalter, Motorschutzschalter und Leitungsschutzschalter sein. Sie müssen Überströme je nach geltender Vorschrift innerhalb bestimmter Ansprechgren- zen abschalten. Zu diesem Zweck sind die Stromauslöser mit den zu öffnenden Kontakten der Schutzschalter dahingehend gekoppelt, daß sie diese als Reaktion auf einen Überstrom- bzw. Kurzschlußstrom öffnen und ggf. offenhalten. Gemäß FIG 2 sind solche Stromauslöser 1 aus einer Magnetspule 2, einem Spulen- gesteil 3 mit einer Führungsröhre 4, einem beweglichen Anker 5, einem ortsfesten Magnetkern 6, einer Feder 7 und einer Stromanschlußklemme 8 zusammengesetzt. Das Spulengestell 3 mit der Führungsröhre 4 besteht aus isolierendem Material. Um das Spulengestell 3 ist die Magnetspule 2 aufgewickelt oder aufgesteckt. Der in der Führungsröhre 4 beweglich gelagerte Anker 5 bewegt sich entgegen der Federkraft der Feder 7 als Reaktion auf einen Überstrom- bzw. Kurzschlußstrom. Hierdurch wird über entsprechende mechanische Koppelglieder ein Öffnen der in der Strombahn befindlichen Kontakte erreicht. In die Führungsröhre 4 des Spulengestells 3 oder in die Anschluß- 2 klemme 8, wie in FIG 2 gezeigt, ist ein Magnetkern 6 eingepreßt. Der Magnetkern 6 ist ein Zusatzteil, das vorzugsweise im Inneren der Führungsröhre 4 gelagert ist, d.h. zumindest teilweise im Innenraum der Magnetspule 2.Generic electromagnetic current releases according to FIG. 2 are used to detect overcurrents, in particular short-circuit currents, in conventional electrical circuit breakers in order to protect single-pole and multi-pole electrical consumers against impermissible operating states. These circuit breakers can be circuit breakers, motor circuit breakers and circuit breakers. Depending on the applicable regulation, you must switch off overcurrents within certain response limits. For this purpose, the current releases are coupled to the contacts of the circuit breakers to be opened in such a way that they open and, if necessary, keep them open in response to an overcurrent or short-circuit current. According to FIG. 2, such current releases 1 are composed of a magnetic coil 2, a coil part 3 with a guide tube 4, a movable armature 5, a stationary magnetic core 6, a spring 7 and a current connecting terminal 8. The coil frame 3 with the guide tube 4 is made of insulating material. The magnetic coil 2 is wound or plugged around the coil frame 3. The armature 5, which is movably mounted in the guide tube 4, moves against the spring force of the spring 7 in response to an overcurrent or short-circuit current. In this way, opening of the contacts located in the current path is achieved via corresponding mechanical coupling elements. In the guide tube 4 of the coil frame 3 or in the connecting 2 terminal 8, as shown in FIG 2, a magnetic core 6 is pressed. The magnetic core 6 is an additional part, which is preferably mounted inside the guide tube 4, that is to say at least partially in the interior of the magnet coil 2.

Der Erfindung liegt die Aufgabe zugrunde, einen elektromagnetischen Stromauslöser der obengenannten Art teileminimiert und damit wirtschaftlich herzustellen.The invention has for its object to partially minimize an electromagnetic current release of the type mentioned above and thus economically.

Die Aufgabe wird dadurch gelöst, daß der Magnetkern und die Stromanschlußklemme einstückig ausgeführt sind.The object is achieved in that the magnetic core and the power connector are made in one piece.

Eine besonders kostengünstige Ausführungsform ist gegeben, wenn der Magnetkern und die Stromanschlußklemme als einstük- kiges Stanzbiegeteil gefertigt sind.A particularly inexpensive embodiment is provided when the magnetic core and the power connection terminal are manufactured as a one-piece stamped and bent part.

Ein Ausführungsbeispiel der Erfindung wird im folgenden anhand einer Zeichnung näher erläutert. Es zeigen:An embodiment of the invention is explained below with reference to a drawing. Show it:

FIG 1 einen erfindungsgemäßen Stromauslöser und1 shows a current release according to the invention and

FIG 2 eine Ausführung eines bekannten Stromauslösers .2 shows an embodiment of a known current release.

Der elektromagnetische Stromauslöser 1 gemäß FIG 1 ist aus einer Magnetspule 2, einem Spulengestell 3 mit einer Füh- rungsröhre 4 aus isolierendem Material, einem beweglichen Anker 5, einem ortsfesten Magnetkern 6, einer Feder 7 und einer Stromanschlußklemme 8 als wesentlichen Elementen zusammengesetzt. Die Magnetspule 2 ist um das Spulengestell aufgewik- kelt oder darauf aufgesteckt und Bestandteil der Strombahn eines zu schützenden Verbrauchers. Der Anker 5 ist beweglich in der Führungsröhre 4 gelagert und reagiert auf einen Kurz- schlußstrom. Die Bewegung des Ankers 5 bewirkt über entsprechende mechanische Koppelglieder ein Öffnen von in der Strombahn befindlichen Kontaktstellen. Dabei bewegt sich der Anker 5 gegen die Kraftwirkung einer ebenfalls in der Führungsröhre 3 4 gelagerten Feder 7. Um eine steilere Kraftkurve des Stromauslösers 1 zu erhalten, ist in der Führungsröhre 4 des Spulengestells 3 ein ortsfester Magnetkern 6 angeordnet, der zusammen mit einer Stromanschlußklemme 8 für die Magnetspule 2 als einstückiges Teil gefertigt ist. Dieses Teil ist vorteilhafterweise als Stanzbiegeteil ausgeführt. The electromagnetic current release 1 according to FIG. 1 is composed of a magnetic coil 2, a coil frame 3 with a guide tube 4 made of insulating material, a movable armature 5, a stationary magnetic core 6, a spring 7 and a current connection terminal 8 as essential elements. The magnet coil 2 is wound around the coil frame or attached to it and is part of the current path of a consumer to be protected. The armature 5 is movably mounted in the guide tube 4 and reacts to a short-circuit current. The movement of the armature 5 causes corresponding mechanical coupling links to open contact points located in the current path. The armature 5 moves against the force of one also in the guide tube 3 4 mounted spring 7. In order to obtain a steeper force curve of the current release 1, a stationary magnetic core 6 is arranged in the guide tube 4 of the coil frame 3, which is made together with a power terminal 8 for the magnet coil 2 as a one-piece part. This part is advantageously designed as a stamped and bent part.

Claims

Patentansprüche claims 1. Elektromagnetischer Stromauslöser für einen elektrischen Schutzschalter mit einer Magnetspule (2), einem beweglichen Anker (5) und einem ortsfesten Magnetkern (6) der durch eine Stromanschlußklemme (8) der Magnetspule (2) gehalten ist, dadurch gekennzeichnet, daß der Magnetkern ( 6 ) und die Stromanschlußklemme (8) einstückig ausgeführt sind.1. Electromagnetic current release for an electrical circuit breaker with a magnetic coil (2), a movable armature (5) and a fixed magnetic core (6) which is held by a current connection terminal (8) of the magnetic coil (2), characterized in that the magnetic core ( 6) and the power connector (8) are made in one piece. 2. Elektromagnetischer Stromauslöser nach Anspruch 1, dadurch gekennzeichnet, daß der feste Magnetkern (6) und die Stromanschlußklemme (8) als Stanzbiegeteil gefertigt sind. 2. Electromagnetic current release according to claim 1, characterized in that the fixed magnetic core (6) and the power terminal (8) are made as a stamped and bent part.
PCT/DE1999/000249 1998-02-11 1999-01-29 Electromagnetic current releasing device for electrical circuit breaker Ceased WO1999041760A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP99914393A EP1053556B1 (en) 1998-02-11 1999-01-29 Electromagnetic current releasing device for electrical circuit breaker
DE59900539T DE59900539D1 (en) 1998-02-11 1999-01-29 ELECTROMAGNETIC CURRENT RELEASE FOR AN ELECTRICAL CIRCUIT BREAKER
JP2000531857A JP2002503869A (en) 1998-02-11 1999-01-29 Electromagnetic current breaker for protective switch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29802348.2 1998-02-11
DE29802348U DE29802348U1 (en) 1998-02-11 1998-02-11 Electromagnetic current release for an electrical circuit breaker

Publications (1)

Publication Number Publication Date
WO1999041760A1 true WO1999041760A1 (en) 1999-08-19

Family

ID=8052523

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/000249 Ceased WO1999041760A1 (en) 1998-02-11 1999-01-29 Electromagnetic current releasing device for electrical circuit breaker

Country Status (5)

Country Link
EP (1) EP1053556B1 (en)
JP (1) JP2002503869A (en)
CN (1) CN1174457C (en)
DE (2) DE29802348U1 (en)
WO (1) WO1999041760A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7521423B2 (en) 1996-08-08 2009-04-21 Amylin Pharmaceuticals, Inc. Exendin pharmaceutical compositions

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29910338U1 (en) 1999-06-14 1999-08-12 Schaltbau AG, 81677 München Emergency switch
DE10126854A1 (en) * 2001-06-01 2002-12-19 Siemens Ag Magnetic yoke for electromagnetic trip of switching device has magnetic core cooperating with trip coil formed in one piece with base body of magnetic yoke
CN101527228B (en) * 2008-03-03 2012-01-18 西门子公司 excitor
CN102133867A (en) * 2011-03-31 2011-07-27 韦良东 Circuit automatic protector against water seepage caused by automobile collision
KR20170091415A (en) * 2016-02-01 2017-08-09 일진전기 주식회사 Improved spring operation device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH481479A (en) * 1967-10-11 1969-11-15 Maier & Cie C Magnetic release for circuit breaker
DE3539341A1 (en) * 1984-11-13 1986-05-15 Töcksfors Verkstads AB, Töcksfors Electromagnet
EP0335774A1 (en) * 1988-03-30 1989-10-04 Hager Electro S.A. Tripping magnet for a circuit breaker

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH616271A5 (en) * 1977-06-27 1980-03-14 Weber Ag Fab Elektro
CH670170A5 (en) * 1986-04-07 1989-05-12 Sprecher & Schuh Ag
GB8609464D0 (en) * 1986-04-17 1986-05-21 Ped Ltd Solenoid actuator
GB8717083D0 (en) * 1987-07-20 1987-08-26 Gen Electric Co Plc Electric switches
DE29502573U1 (en) * 1995-02-16 1995-04-20 Heinrich Kopp Ag, 63796 Kahl Switchgear, especially circuit breakers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH481479A (en) * 1967-10-11 1969-11-15 Maier & Cie C Magnetic release for circuit breaker
DE3539341A1 (en) * 1984-11-13 1986-05-15 Töcksfors Verkstads AB, Töcksfors Electromagnet
EP0335774A1 (en) * 1988-03-30 1989-10-04 Hager Electro S.A. Tripping magnet for a circuit breaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7521423B2 (en) 1996-08-08 2009-04-21 Amylin Pharmaceuticals, Inc. Exendin pharmaceutical compositions

Also Published As

Publication number Publication date
CN1274469A (en) 2000-11-22
DE59900539D1 (en) 2002-01-24
EP1053556A1 (en) 2000-11-22
DE29802348U1 (en) 1998-04-23
CN1174457C (en) 2004-11-03
JP2002503869A (en) 2002-02-05
EP1053556B1 (en) 2001-12-12

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